| 水溶性荧光高分子乙烯基咔唑－丙烯酸共聚物的合成及荧光测试 |
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| 引用本文： | 博·格日勒图, 敖登高娃.水溶性荧光高分子乙烯基咔唑－丙烯酸共聚物的合成及荧光测试[J].应用化学,1994(2). |
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| 作者姓名： | 博·格日勒图 敖登高娃 |
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| 作者单位： | 内蒙古师范大学化学系，内蒙古大学化学系 |
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| 基金项目： | 内蒙古自然科学基金资助项目 |
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| 摘 要： | 用偶氮二异丁腈作引发剂，使Ｎ－乙烯基咔唑和丙烯酸甲酯在苯中共聚合，该共聚物在四氢呋喃中用氢氧化钠水溶液水解，得到水溶性乙烯基咔唑－丙烯酸共聚物。该共聚物的水溶液在３７３ｎｍ处产生较强的荧光，其荧光强度随溶液ｐＨ值增大而增强，在该高分子水溶液中，加入少量阳离子表面活性剂，其量子产率可提高７倍，微量重金属离子（Ｈｇ（２＋））对荧光有一定的熄灭作用。荧光强度（ｌｏｇＩ０／Ｉ）与Ｈｇ（２＋）的浓度呈线性关系。
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| 关 键 词： | 荧光，乙烯基咔唑，丙烯酸，共聚物 |
Prepartion of Water Soluble Copolymer of N-Vinyl-carbazole and Acrylic Acid and Its Fluorescence |
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| Abstract: | A linear copolymer of methyl acrylate and N-vinylcarbazole was prepared in ben-zene using AIBN as an initiator and then hydrolyzed in NaOH aqueous solution. The fluores-cence intensities of the aqueous solution of the hydrolyzed water soluble copolymer increasewith the increase of the pH value and the concentration of the cationic surfactant. Mercuryions(Hg(2 ))showed a certain quenching effect on the fluorescene of the copolymer aqueoussolution. The concentration of Hg(2 )is in a linear relationship with the fluorescence intensity(logI0/I)of the polymer solution, that may be used to determine the trace amount of mer-cury by fluorescence quenching method. |
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| Keywords: | fluorescence N-vinyl carbazole acrylic acid copolymer |
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